Air in the lines, short cycling, and dry runs can interrupt water use in an RV. This self-priming pump clears air automatically, reduces cycling, and protects itself from heat and low-water situations to keep your water flowing where you need it.
After winterizing or running your tank dry, air can get trapped in your RV's plumbing. With a manual pump, clearing that air usually means loosening fittings or pouring water into the pump, which can be messy. This self-priming pump clears the air on its own so water reaches the faucet without manual priming or repeated cycling.
Short cycling and pulsing flow are common frustrations in RV water systems. This pump uses an internal bypass to recirculate water when demand is low, helping prevent rapid on-off cycling at sinks and low-flow shower heads. The result is steadier pressure and reduced vibration during everyday use.
RV water systems don't always behave the way you expect. Tanks run dry, water demand changes quickly, and pumps end up cycling on and off more than they should. This pump is thermally protected and can run dry during normal priming or brief low-water situations without damaging internal components. A built-in one-way check valve helps prevent reverse flow, supporting consistent pressure and protecting your freshwater system.
The pump can be mounted in any position and includes strainers and fittings to help simplify installation. The ports use straight pipe threads, which seal with washers or gaskets rather than tapered threads. Proper fitting placement helps prevent leaks and ensures reliable operation.
Alternate Instructions
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everyone, Steven here with the eTrailer. Let's talk pumps. This is the PowerMax RV fresh water pump. You're gonna get strainers, you're gonna get the fittings. It runs on 12 volts of power and it's got a 3.2 gallon per minute flow rate at 55 PSI. So folks, again, 12 volt power.
Easy to wire up with the included wires. And of course, you've got your mounting bracket here on the bottom and you've got your inlet and outlet as far as your pump, and those are all threaded. Your fittings can easily spin on here, whichever side you need to put 'em on. And again, you get that inline filter strainer here, strainer, sorry, not filter included. So this is a thermally protected unit.
It can run dry without having to worry about damage in it. It has a check valve in, it's a one-way operation, so it's gonna prevent any kind of reverse flow. It's a low cycle unit, so it's gonna be nice and quiet. And the built-in check valve is gonna be great for safety and that ignition for protection as well is gonna be great. It uses a three chamber diaphragm pump and an internal bypass that's gonna make it long lasting and top performing as well.
So whether you're putting it in your RV, motor home, boats, this is a great option for you. Let's get some quick dimensions before we finish up together today. I got roughly eight and a half inches long at the end. The end here on the threads, I got about five one quarter inches, and it's roughly four and 15-16 inches tall. Now this has a dry prime rating of six foot, and the housing here is mainly polypropylene with some metal here at the back end as well.
It's pretty light, little less than five pounds, so it's a nice, small, easy to install unit. As always, reach out to us if you have any questions about this or any of the products, and have a great day.
Arrived on time - everything intact and as advertised - Have not installed yet .
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